32217103981 has 4 divisors (see below), whose sum is σ = 32218826332. Its totient is φ = 32215381632.

The previous prime is 32217103979. The next prime is 32217103993. The reversal of 32217103981 is 18930171223.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25355466756 + 6861637225 = 159234^2 + 82835^2 .

It is a cyclic number.

It is not a de Polignac number, because 32217103981 - 2¹ = 32217103979 is a prime.

It is a super-2 number, since 2×32217103981² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32217103981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32217101981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 832806 + ... + 870631.

It is an arithmetic number, because the mean of its divisors is an integer number (8054706583).

Almost surely, 2^32217103981 is an apocalyptic number.

It is an amenable number.

32217103981 is a deficient number, since it is larger than the sum of its proper divisors (1722351).

32217103981 is a wasteful number, since it uses less digits than its factorization.

32217103981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722350.

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 32217103981 in words is "thirty-two billion, two hundred seventeen million, one hundred three thousand, nine hundred eighty-one".